protected override void OnDrawSample(SKCanvas canvas, int width, int height)
{
canvas.Clear(SKColors.White);
var step = height / 4;
using (var paint = new SKPaint())
using (var effect = SKPathEffect.CreateDash(new[] { 15f, 5f }, 0))
{
paint.IsStroke = true;
paint.StrokeWidth = 4;
paint.PathEffect = effect;
canvas.DrawLine(10, step, width - 10 - 10, step, paint);
}
using (var paint = new SKPaint())
using (var effect = SKPathEffect.CreateDiscrete(10, 10))
{
paint.IsStroke = true;
paint.StrokeWidth = 4;
paint.PathEffect = effect;
canvas.DrawLine(10, step * 2, width - 10 - 10, step * 2, paint);
}
using (var paint = new SKPaint())
using (var dashEffect = SKPathEffect.CreateDash(new[] { 15f, 5f }, 0))
using (var discreteEffect = SKPathEffect.CreateDiscrete(10, 10))
using (var effect = SKPathEffect.CreateCompose(dashEffect, discreteEffect))
{
paint.IsStroke = true;
paint.StrokeWidth = 4;
paint.PathEffect = effect;
canvas.DrawLine(10, step * 3, width - 10 - 10, step * 3, paint);
}
}
/// <inheritdoc />
public void DrawLine(Point point1, Point point2, IPaint paint)
{
using var skPaint = new SKPaint
{
Color = paint.Fill.ToSkColor(paint.Opacity),
StrokeWidth = paint.StrokeThickness,
IsAntialias = paint.IsAntialiased,
IsStroke = Math.Abs(paint.StrokeThickness) > float.Epsilon
};
if (paint.DashPattern != null)
{
var dashEffect = SKPathEffect.CreateDash(paint.DashPattern, 0);
skPaint.PathEffect = skPaint.PathEffect != null
? SKPathEffect.CreateCompose(dashEffect, skPaint.PathEffect)
: dashEffect;
}
Surface.Canvas.DrawLine(point1.ToSkPoint(), point2.ToSkPoint(), skPaint);
}